CN102974975A - Method of manufacturing wind electricity flange - Google Patents
Method of manufacturing wind electricity flange Download PDFInfo
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- CN102974975A CN102974975A CN2012104389382A CN201210438938A CN102974975A CN 102974975 A CN102974975 A CN 102974975A CN 2012104389382 A CN2012104389382 A CN 2012104389382A CN 201210438938 A CN201210438938 A CN 201210438938A CN 102974975 A CN102974975 A CN 102974975A
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Abstract
The invention discloses a method of manufacturing a wind electricity flange. The method comprises that alloy steel blank is refined in a steel furnace; the alloy steel blank is processed to obtain a wind electricity flange ring forging piece after forging, blank making, ring rolling, heat treating and metalworking; heat treating is carried out to the forged blank; the forged blank is processed into a wind electricity flange workpiece according with size requirement through a numerical control radial-axial direction ring rolling machine; rough machining and finish machining are carried out to the wind electricity flange workpiece, and a manual chamfer process, a flaw detection process and other processes are carried out to the wind electricity flange workpiece after the rough machining and the finish machining.
Description
Technical field
Technical field of wind power generator of the present invention particularly relates to a kind of method of making wind power flange.
Background technology
Society, along with the problems such as global energy shortage and environmental pollution are increasingly serious, seeking regenerative resource has become the key subjects that countries in the world face.
Wind energy is that a kind of renewable resource and amount of accumulateing of cleaning is huge, more and more is subject to people's attention.Wind-power electricity generation utilizes this resource just, rises up slowly as a novel industry.Being used for wind turbine equipment MW level wind-powered electricity generation unit wind tower body tower body flange is the supporting part of wind power equipment, need to stronger wind energy ,+40～-40 ℃ of environment temperatures under, satisfy the specific instructions for uses such as bearing load.The tradition wind tower flange is crucial connector, support member and the stressed member of wind-power tower, and wind power flange has very high requirement to quality, and presently used wind tower flange generally all adopts the Q345E material to make wind tower flange.Its shortcoming is: because material composition, and the scope that allows of physical and chemical index larger, forging and Technology for Heating Processing are simply rough, cause unstable product quality, still difficult satisfy stronger wind energy ,+40～-40 ℃ of environment temperatures under, bear safely and steadly the specific instructions for uses such as load.
Summary of the invention
Technical problem to be solved by this invention is: will provide a kind of steady quality reliable, can satisfy the wind power equipment of adverse circumstances instructions for use with the manufacture method of wind tower flange ring
The forming method of wind power flange of the present invention comprises the steps:
(1) is warming up to 1250 ℃ at converter, refining goes out the steel alloy blank in this converter, the weight of its each chemical element of medium alloy steel is composed as follows: carbon: 0.14～0.19wt%, silicon: 0.20～0.33wt%, manganese: 0.85%～1.30wt%, phosphorus :≤0.02wt%, sulphur: 0.015～0.02wt%, chromium: 0.08～0.1wt%, vanadium: 0.6～0.2wt%, nickel: 0.30～0.50wt%, copper: 0.2～0.3wt%, titanium :≤0.2wt%, niobium :≤0.06wt%, and surplus is iron;
(2) take described steel alloy as blank, after rolling over ring, heat treatment, metalworking, base obtains described wind power forged flange ring piece through forging; Wherein initial forging temperature is about 1200～1250 ℃, and forging ratio is 4 or 5 times, and final forging temperature is about 760 ℃～800 ℃;
(3) blank after will forging is heat-treated, and heat treatment temperature is about 1250 ℃ and kept this temperature 1 hour;
(4) the described forging process after employing numerical control footpath-axially ring rolls will forge becomes to meet the wind power flange workpiece of size;
(5) described workpiece is carried out roughing and fine finishining, wherein the roughing technological parameter is that cutting depth is about: 9mm, and cutting speed is about 80 m/mins, and allowance is 3mm; The fine-processing technique parameter is: cutting depth is about: 1mm, and cutting speed is about 60 m/mins;
(6) wind power flange of finishing after roughing and the fine finishining is carried out the techniques such as manual chamfering, flaw detection;
Wherein, step (2) adopts 3150T, 4000T or 5000T hydraulic forging press to forge, preferred 5000T hydraulic forging press;
Wherein, preferably, what roughing was adopted is 120 degree lathe tools;
Wherein, preferably, what fine finishining was adopted is the bulb lathe tool.
The specific embodiment
For technical scheme of the present invention more clearly is described, the invention will be further described by embodiment described below.
Embodiment 1
The method that the present invention makes wind power flange comprises the steps:
(1) is warming up to 1250 ℃ at converter, refining goes out the steel alloy blank in this converter, the weight of its each chemical element of medium alloy steel is composed as follows: carbon: 0.14～0.19wt%, silicon: 0.20～0.33wt%, manganese: 0.85%～1.30wt%, phosphorus :≤0.02wt%, sulphur: 0.015～0.02wt%, chromium: 0.08～0.1wt%, vanadium: 0.6～0.2wt%, nickel: 0.30～0.50wt%, copper: 0.2～0.3wt%, titanium :≤0.2wt%, niobium :≤0.06wt%, and surplus is iron;
(2) take described steel alloy as blank, adopt the 5000T hydraulic forging press that described blank is forged, after rolling over ring, heat treatment, metalworking, base obtains described wind power forged flange ring piece through forging; Wherein initial forging temperature is about 1250 ℃, and forging ratio is 5, and final forging temperature is about 800 ℃;
(3) blank after will forging is heat-treated, and heat treatment temperature is about 1250 ℃ and kept this temperature 1 hour;
(4) the described forging process after employing numerical control footpath-axially ring rolls will forge becomes to meet the wind power flange workpiece of size;
(5) described workpiece is carried out roughing and fine finishining, wherein 120 degree lathe tools are adopted in roughing, and its technological parameter is that cutting depth is: 9mm, and cutting speed is 80 m/mins, allowance is 3mm; The bulb lathe tool is adopted in fine finishining, and its technological parameter is: cutting depth is: 1mm, and cutting speed is 60 m/mins;
(6) wind power flange of finishing after roughing and the fine finishining is carried out the techniques such as manual chamfering, flaw detection;
Embodiment 2:
(1) is warming up to 1250 ℃ at converter, refining goes out the steel alloy blank in this converter, the weight of its each chemical element of medium alloy steel is composed as follows: carbon: 0.14～0.19wt%, silicon: 0.20～0.33wt%, manganese: 0.85%～1.30wt%, phosphorus :≤0.02wt%, sulphur: 0.015～0.02wt%, chromium: 0.08～0.1wt%, vanadium: 0.6～0.2wt%, nickel: 0.30～0.50wt%, copper: 0.2～0.3wt%, titanium :≤0.2wt%, niobium :≤0.06wt%, and surplus is iron;
(2) take described steel alloy as blank, adopt 3150T, 4000T hydraulic forging press that described blank is forged, after rolling over ring, heat treatment, metalworking, base obtains described wind power forged flange ring piece through forging; Wherein initial forging temperature is about 1200 ℃, and forging ratio is 4 times, and final forging temperature is about 780 ℃;
(3) blank after will forging is heat-treated, and heat treatment temperature is about 1250 ℃ and kept this temperature 1 hour;
(4) the described forging process after employing numerical control footpath-axially ring rolls will forge becomes to meet the wind power flange workpiece of size;
(5) described workpiece is carried out roughing and fine finishining, wherein 120 degree lathe tools are adopted in roughing, and its technological parameter is that cutting depth is: 9mm, and cutting speed is 80 m/mins, allowance is 3mm; The bulb lathe tool is adopted in fine finishining, and its technological parameter is: cutting depth is: 1mm, and cutting speed is 60 m/mins;
(6) wind power flange of finishing after roughing and the fine finishining is carried out the techniques such as manual chamfering, flaw detection;
The wind power flange that adopts method of the present invention to make owing to adjusted the chemical composition proportioning of steel alloy, therefore obtains the wind power flange of high strength, high tenacity and low-temperature impact resistance, thereby improves its service life and performance.
Although described specific embodiments more of the present invention; but it is not for limiting the present invention; protection scope of the present invention is limited to the appended claims; and those skilled in the art can make various modifications to the present invention in the situation that does not break away from the claims protection domain.
Claims (3)
1. method of making wind power flange may further comprise the steps:
(1) is warming up to 1250 ℃ at converter, refining goes out the steel alloy blank in this converter, the weight of its each chemical element of medium alloy steel is composed as follows: carbon: 0.14～0.19wt%, silicon: 0.20～0.33wt%, manganese: 0.85%～1.30wt%, phosphorus :≤0.02wt%, sulphur: 0.015～0.02wt%, chromium: 0.08～0.1wt%, vanadium: 0.6～0.2wt%, nickel: 0.30～0.50wt%, copper: 0.2～0.3wt%, titanium :≤0.2wt%, niobium :≤0.06wt%, and surplus is iron;
(2) take described steel alloy as blank, after rolling over ring, heat treatment, metalworking, base obtains described wind power forged flange ring piece through forging; Wherein initial forging temperature is about 1200～1250 ℃, and forging ratio is 4 or 5 times, and final forging temperature is about 760 ℃～800 ℃;
(3) blank after will forging is heat-treated, and heat treatment temperature is about 1250 ℃ and kept this temperature 1 hour;
(4) the described forging process after employing numerical control footpath-axially ring rolls will forge becomes to meet the wind power flange workpiece of size;
(5) described workpiece is carried out roughing and fine finishining, wherein the roughing technological parameter is that cutting depth is: 9mm, and cutting speed is 80 m/mins, allowance is 3mm; The fine-processing technique parameter is: cutting depth is: 1mm, and cutting speed is 60 m/mins;
(6) wind power flange of finishing after roughing and the fine finishining is carried out the techniques such as manual chamfering, flaw detection;
2. the method for manufacturing wind power flange as claimed in claim 1, wherein,
Step (2) adopts 3150T, 4000T or 5000T hydraulic forging press to forge, preferred 5000T hydraulic forging press;
3. the method for manufacturing wind power flange as claimed in claim 2, wherein, what roughing was adopted is 120 degree lathe tools; What fine finishining was adopted is the bulb lathe tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210438938.2A CN102974975B (en) | 2012-11-05 | 2012-11-05 | Manufacture the method for wind power flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210438938.2A CN102974975B (en) | 2012-11-05 | 2012-11-05 | Manufacture the method for wind power flange |
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| Publication Number | Publication Date |
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| CN102974975A true CN102974975A (en) | 2013-03-20 |
| CN102974975B CN102974975B (en) | 2016-04-13 |
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| CN201210438938.2A Active CN102974975B (en) | 2012-11-05 | 2012-11-05 | Manufacture the method for wind power flange |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439030A (en) * | 2014-11-11 | 2015-03-25 | 连云港珍珠河石化管件有限公司 | Method for forging large-caliber welding neck flanges |
| CN105499928A (en) * | 2015-12-29 | 2016-04-20 | 江阴市恒润环锻有限公司 | Flange machining method |
| CN108515314A (en) * | 2018-03-13 | 2018-09-11 | 张家港中环海陆特锻股份有限公司 | The manufacturing process of shield machine super large wall thickness large flange |
| CN109648255A (en) * | 2018-11-16 | 2019-04-19 | 贵州航天新力铸锻有限责任公司 | A kind of plate forging rolloff composite molding technique of large-sized flange |
| CN110773692A (en) * | 2019-11-07 | 2020-02-11 | 江阴市恒润环锻有限公司 | Forging method of low-temperature high-strength offshore wind power flange |
| CN116786752A (en) * | 2023-08-29 | 2023-09-22 | 山西天宝集团有限公司 | Forging device and method for low-temperature high-strength wind power flange |
Citations (5)
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| GB1168210A (en) * | 1968-05-17 | 1969-10-22 | Rolls Royce | Improvements relating to the Forging of a Flanged Article |
| US6178638B1 (en) * | 1999-03-22 | 2001-01-30 | Lei-Jui Wu | Fabrication method for a flange-type ball valve |
| DE19958343A1 (en) * | 1999-12-03 | 2001-06-21 | Peter Groche | Production of a hollow shaft having an outer contour with at least one wave section used in gears comprises processing the inner or outer diameter or at least a flange section of a bowl-like preform by pressure rolling |
| CN101760697A (en) * | 2009-12-11 | 2010-06-30 | 张家港海陆环形锻件有限公司 | Wind tower flange ring forging part for wind power equipment and manufacture method thereof |
| CN102717237A (en) * | 2012-06-28 | 2012-10-10 | 江苏金源锻造股份有限公司 | Method for forming wind power flange |
-
2012
- 2012-11-05 CN CN201210438938.2A patent/CN102974975B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1168210A (en) * | 1968-05-17 | 1969-10-22 | Rolls Royce | Improvements relating to the Forging of a Flanged Article |
| US6178638B1 (en) * | 1999-03-22 | 2001-01-30 | Lei-Jui Wu | Fabrication method for a flange-type ball valve |
| DE19958343A1 (en) * | 1999-12-03 | 2001-06-21 | Peter Groche | Production of a hollow shaft having an outer contour with at least one wave section used in gears comprises processing the inner or outer diameter or at least a flange section of a bowl-like preform by pressure rolling |
| CN101760697A (en) * | 2009-12-11 | 2010-06-30 | 张家港海陆环形锻件有限公司 | Wind tower flange ring forging part for wind power equipment and manufacture method thereof |
| CN102717237A (en) * | 2012-06-28 | 2012-10-10 | 江苏金源锻造股份有限公司 | Method for forming wind power flange |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439030A (en) * | 2014-11-11 | 2015-03-25 | 连云港珍珠河石化管件有限公司 | Method for forging large-caliber welding neck flanges |
| CN105499928A (en) * | 2015-12-29 | 2016-04-20 | 江阴市恒润环锻有限公司 | Flange machining method |
| CN108515314A (en) * | 2018-03-13 | 2018-09-11 | 张家港中环海陆特锻股份有限公司 | The manufacturing process of shield machine super large wall thickness large flange |
| CN109648255A (en) * | 2018-11-16 | 2019-04-19 | 贵州航天新力铸锻有限责任公司 | A kind of plate forging rolloff composite molding technique of large-sized flange |
| CN110773692A (en) * | 2019-11-07 | 2020-02-11 | 江阴市恒润环锻有限公司 | Forging method of low-temperature high-strength offshore wind power flange |
| CN116786752A (en) * | 2023-08-29 | 2023-09-22 | 山西天宝集团有限公司 | Forging device and method for low-temperature high-strength wind power flange |
| CN116786752B (en) * | 2023-08-29 | 2023-11-07 | 山西天宝集团有限公司 | Forging device and method for low-temperature high-strength wind power flange |
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| Publication number | Publication date |
|---|---|
| CN102974975B (en) | 2016-04-13 |
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Address after: 213376, No. 8, Zhongguancun Avenue, Liyang, Jiangsu, Changzhou Patentee after: Jiangsu Jinyuan High-end Equipment Co., Ltd. Address before: 213376, No. 2008 Ling Ling West Road, Changzhou, Jiangsu, Liyang Patentee before: Jiangsu Jinyuan Forging Co., Ltd. |